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Finding the Fourth Proportional to 298,514.61, 447,831.01 and 85,284.34

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Solution

The fourth proportional to 298,514.61, 447,831.01 and 85,284.34 is: 127,943.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,514.61 : 447,831.01 = 85,284.34 : x
  2. Step 2: Convert to fraction form
    298,514.61/447,831.01 = 85,284.34/x
  3. Step 3: Cross multiply
    298,514.61x = 447,831.01 × 85,284.34
  4. Step 4: Simplify right side
    298,514.61x = 38,192,970,786.60
  5. Step 5: Solve for x
    x = 38,192,970,786.60/298,514.61
  6. Step 6: Final answer
    x = 127,943.39

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